CN211704749U

CN211704749U - Novel trepan

Info

Publication number: CN211704749U
Application number: CN201921647208.7U
Authority: CN
Inventors: 楚磊; 雷东
Original assignee: Beijing Donghong Zhiyuan Medical Technology Co ltd
Current assignee: Beijing Donghong Zhiyuan Medical Technology Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-10-20
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a novel trepan, including body (1), the one end of body (1) is equipped with handle (2), and the tip of the other end is formed with cutting head (3), have on body (1) the one end of cutting head (3) is formed with along axially extended breach (4). The utility model discloses have the observation window, can enough guarantee the structural strength of trepan, can provide great field of vision scope again for the endoscope.

Description

Novel trepan

Technical Field

The utility model relates to a trepan, concretely relates to novel trepan belongs to the medical instrument field.

Background

With the development of society, people engaged in mental labor are more and more, and people suffering from lumbar vertebra diseases and cervical vertebra diseases are more and more due to the lack of movement after sitting in an office for a long time.

In order to relieve the pain of people, medical experts research and develop minimally invasive surgery for treating lumbar and cervical vertebra diseases, and trepan is an essential tool in the minimally invasive surgery. For example, in the treatment of herniated disc, in the case of herniated disc, in order to safely reach the cavity of the spine with the working channel, a trephine is used to cut the hyperplastic bone at the distal end of the facet joint and a portion of the superior articular process to enlarge the intervertebral foramen, so that the working channel of the spinal endoscope reaches the cavity of the spine, and the herniated nucleus pulposus tissue is removed with a surgical instrument to achieve the purpose of treating herniated disc.

At present, a commonly used trepan is an integrated tubular structure made of titanium alloy, and needs to be matched with an endoscope to assist in cutting in some operations, but because the pipe wall of the trepan is non-transparent, the view field of the endoscope can be shielded, and the surrounding situation cannot be seen. However, if the end of the ring saw is designed to be transparent, the structural strength is insufficient or the ring saw cannot be firmly combined with the ring saw body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel trepan to solve the technical problem among the prior art, it has the observation window, can enough guarantee the structural strength of trepan, can provide great field of vision scope again for the endoscope.

The utility model provides a novel trepan, including a pipe body, the one end of body is equipped with the handle, and the tip of the other end is formed with the cutting head, the body has the one end of cutting head is formed with along axially extended breach.

In the novel trepan, the length of the gap is preferably 3mm-10 mm.

In the novel trepan, the length of the gap is preferably 5 mm.

In the novel trepan, preferably, the outer diameter of the pipe body is 6mm-15mm, and the inner diameter of the pipe body is 4mm-13 mm.

In the novel trepan, preferably, the outer diameter of the pipe body is 8mm, and the inner diameter of the pipe body is 6 mm.

In the novel trepan, preferably, the cutting head has a saw-toothed structure, a joint of any two adjacent teeth is arc-shaped, and the teeth are inclined in the counterclockwise direction.

In the novel trepan, the cutting head is preferably of a flat head structure, the end of the cutting head is provided with a cutting edge, and the two long edges of the notch are also provided with cutting edges.

In the novel trepan, preferably, a cross-sectional shape of an end where the cutting head is located is an arc, and a radian of the notch portion is 120 °.

In the novel trepan, preferably, the outer wall and the inner wall of the pipe body are both provided with scale marks.

In the novel trepan, preferably, the handle has a connecting portion and a rod-shaped portion, the connecting portion is fixedly connected with the outer wall of the pipe body, the rod-shaped portion is three, and the connecting portion is annularly arranged on the outer wall of the connecting portion at equal intervals.

Compared with the prior art, the utility model discloses a body, the one end of body are equipped with the handle, and the tip of the other end is formed with the cutting head, and the one end that has the cutting head on the body is formed with along axially extended breach. Can provide for the endoscope through setting up the breach and watch cutting position window all around, alright adjust the angle of breach through rotatory trepan when the cutting like this to make the endoscope can see the condition all around, thereby improve the operation success rate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of another embodiment of the present invention.

Description of reference numerals: 1-a pipe body, 2-a handle, 3-a cutting head, 4-a notch, 5-a scale mark, 6-a connecting part and 7-a rod-shaped part.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

The embodiment of the utility model provides a: as shown in fig. 1, a novel trepan, body 1 including titanium alloy makes, the one end of body 1 is equipped with handle 2, the tip of the other end is formed with cutting head 3, the one end that has cutting head 3 on body 1 is formed with the breach 4 that begins and follow axial extension from the tip, this breach 4 has formed an observation window, in the operation process, when lieing in the endoscope cooperation and using, cup joint the trepan outside the body of endoscope, when needs observe the surrounding tissue, need not to take out the trepan, only need to change the position of breach 4 on body 1 to the position that needs observe, can see the circumstances all around through the endoscope like this.

In a particular embodiment, the length of the indentations 4 can be set to 3mm to 10mm, preferably 5 mm. Due to the arrangement of the notch 4, the cross section of the end is arc-shaped, the radian of the notch 4 is 120 degrees, and particularly the cross section of the end is three-quarter circle. By adopting the structure design, not only can a large enough visual field range be provided for the endoscope, but also the structural strength of the trepan can be ensured.

Further, the outer diameter of the pipe body 1 may be designed to be 6mm to 15mm, preferably 8mm, and the inner diameter may be designed to be 4mm to 13mm, preferably 6 mm.

It should be noted that the cutting head 3 may be designed to have two structures, one is a saw-toothed structure, and in order to improve the structural strength of the saw teeth and prevent the teeth from being broken, it is preferable that the joint between any two adjacent teeth is designed to be a circular arc shape, and the teeth are all inclined in the counterclockwise direction. Another configuration is shown in fig. 2, in which the cutting head 3 is designed as a flat head with cutting edges on both long sides of the indentation 4.

Furthermore, the outer wall and the inner wall of the tube body 1 are both provided with scale marks 5. The scale lines arranged on the inner wall can be used for checking the cutting depth of the trepan through an endoscope. The handle 2 is provided with a connecting part 6 and a rod-shaped part 7, the connecting part 6 is fixedly connected with the outer wall of the tube body 1, and the rod-shaped part 7 is provided with three parts which are arranged on the outer wall of the connecting part 6 at equal intervals.

The structure, features and effects of the present invention have been described in detail above according to the embodiment shown in the drawings, and the above description is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the idea of the present invention or equivalent embodiments modified to the same changes should be considered within the protection scope of the present invention when not exceeding the spirit covered by the description and drawings.

Claims

1. The utility model provides a novel trepan, includes body (1), the one end of body (1) is equipped with handle (2), and the tip of the other end is formed with cutting head (3), its characterized in that: a notch (4) extending along the axial direction is formed at one end of the pipe body (1) provided with the cutting head (3); the length of the notch (4) is 3mm-10 mm.

2. The new trepan as claimed in claim 1, wherein: the length of the gap (4) is 5 mm.

3. The new trepan as claimed in claim 1, wherein: the outer diameter of the pipe body (1) is 6mm-15mm, and the inner diameter is 4mm-13 mm.

4. The new trepan as claimed in claim 3, wherein: the external diameter of body (1) is 8mm, and the internal diameter is 6 mm.

5. The new trepan as claimed in claim 1, wherein: the cutting head (3) is of a sawtooth structure, the joint of any two adjacent teeth is arc-shaped, and the teeth incline towards the counterclockwise direction.

6. The new trepan as claimed in claim 1, wherein: the cutting head (3) is of a flat-head structure, the end part of the cutting head (3) is provided with a cutting edge, and two long edges of the notch (4) are also provided with cutting edges.

7. The novel trepan as claimed in any one of claims 1 to 6, wherein: the section of one end where the cutting head (3) is located is arc-shaped, and the radian of the notch (4) is 120 degrees.

8. The new trepan as claimed in claim 7, wherein: the outer wall and the inner wall of the pipe body (1) are provided with scale marks (5).

9. The new trepan as claimed in claim 1, wherein: the handle (2) is provided with a connecting part (6) and a rod-shaped part (7), the connecting part (6) is fixedly connected with the outer wall of the pipe body (1), the rod-shaped part (7) is three, and the connecting part (6) and the rod-shaped part are annularly arranged on the outer wall of the connecting part (6) at equal intervals.